Apparatus for galvanizing.



N. W. BUCH.

APPARATUS FOR GALVANIZING.

APPLxcATxoN man :UNE 28. |913.

1,141,930. PatentedJune 8, 1915.

W W V 2 SHEETSA-SHEH 2.

INVUITNI' mit www BKWMSQM@ (hmm *an STATES PATENT Sonrisa.

NEWTON W. BUCH, F NEWASTLE, PEI'NSYLVANIA, ASSIGNGR T0 SAFETY ARMORI'IE CNDUIT COMPANY, 0F PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

APPARATUS FOR GALVANIZING.

Specification o`Letters Patent.

Patented June 8, it-5.

Application tiled June 28, 1913. Serial No. 776,430.

To allfwhomit may concern A Be it knownthat I, NEWTON W. BUCH, a

citizen of the United States, residing at New Castle, in the county of Lawrence and State 6 of Pennsylvania, have invented a new useful Apparatus for Galvanizing, ofwhich the following is a full, clear, and exact description, reference being had -to the accompany- Aing drawings, forming part ofithis specification, in Which- A i Figure 1 is a longitudinal section through lone form of apparatus for galvanizing. Fig. 2 is a plan View. .Fig 3 is an end view of one ot the. pipe supporting members on a larger scale, and Fig. 4 is a sectional view on the line V--IV of Fig. 3.

M y invention relates to the galvani'zing of ies, bars, etc., andthe apparatus is ded to continuously carry lout a method novel character' by means of which the otgalvanizing may be rapid-ly and cughly performed.A ille precise nature of my invention will understood by reference tothe acied, it'being premised, however, that as changes ma be made Without departing romthe spirit and scope of my -inrelation, as defined in the appended claims.

In the. drawings, `the numeral'Q designates ay tank for containing the acid bath 3.

' 4 der' gnates a skid leading into the bath on whi i the pipes to be'galvanized are fed in any 'isired manner. Rotatably mounted the bearings connected to the tank 2 are shafts 5-5 having connected thereto sprocket. wheels 6 for an endless 'conveyer 7. This endless conveyer is provided with y hooks 8 which are arranged to lift the pipes o or rods from the skid 4 and convey them to on inclined skid 9. This skid 9 extends from the acid tank 2 to a point adjacent to a hot metal tank 10, having a furnace 11 for keeping. the metal in a molten condition.

4l2 is a stop on`the skid 9 whichis arrangedto prevent the pipes or .rods rolling down the skid to the hot .metal tan-k 5.

Y Extending beyond the hot metal tank 10 is a, third skid 13, over which the pipes are moved after. they have been galvanized, and let'isan endless vcrmveyer above the hot metal tank 1G Whichis arranged to drew the pipes rods through the molten metal tank.

, This endless conveyer is mounted on sprocket 5l wheels 15V connectedrto shafts 16 which may nnanying drawings, which will now beY pass out through the openings in the conbe rotated in any desired manner, and extending outwardly from both of the chains 'of the conveyer are projections 17 for engaging the hooked portions v18 on pipe supporting members 19. These pipe supportmg members are provided with laterally extcndmg bosses 2() which are screvv threaded to receive the ends of the pipes or :'ods, and are each provided with an opening extending from the upper 'end thereof into the 65 tapped recess. Mounted within the hot metal tank 10 are guides 21.

The pipes or rods are fed into the tank 2 over the skid 4 in which they are treated by means of the acid to remove grease, etc., in order to prepare them for the galvanizing bath. The pipes are conveyed successively from the tank 2 to the skid 9 and pass by gravity down the skid 9 to the stop 12. 'The pipes are then moved 'successively beyond the stop 12 and a supporting member 19 is connectedto each end thereof.v Itls then passed to a point above a plurality of burners or hot plates 22, which are arranged-to heat the pipe to drive off some of the moisture from the acid bath.l The supporting mem'- bers 19 are then elevated-at their outer ends by means of a lever such as shownV at 23 so that the hooked members thereof will be engaged by the projections 17 on the conveyor 14. The forward movement of the conveyer jwill carry 'the pipe into the hot bath .in the tank 10 and the guides 21 will hold the pipe down below1 the upper surface of the molten metal. During the passage of the pipe through the molten metal, the outer surface thereof will be galvanized and any vapor caused by the moisture within the pipevvill necting members. After the pipe has been drawn -through thehot metal bath it vvill be raised onto the skid 13 and disconnected from the supporting members and the c'onveyer. l

The advantages of my invention will he apparent to those skilled in the art, since it provides an extremely efficient and rapid method of galvanizing pipe. The apparatus also overcomes the difficulties which have heretofore been experienced due to the rapid vaporization within the pipe of any moisture such as remains fromthe acid bath, as the vapor can pass oft through the openings in the supporting members.

further advantage consists in the fact il@ srsY that the threaded ends of the pipe are protected against being coated and that no galvanizing material can enter the interior of the pipes during the galvanizing operation.

It will be seen that the supporting members 19 per-form four distinctfunctious as follows: First, they act as supporting members; second, they act to close the ends of the pipes against the entrance of any galvanizing lor coating material to the interiors y thereof; third, they protect the threads of the, pipe' from becoming coated or clogged with thegalvanizing material; and fourth, they form venting means for the interior of 'ing material, a' conveyer arranged over vsaid tank, and Asupporting devices adapted' to -detachably engage thev conveyer and also to engage the pipes to suspend. them v'vithin the .galvanizing material within the tank, said supporting devices having means for'closing the ends of the'pipe againstthe entrance of thegalvanizing material intov the interiorof the pipe, substantially as described.

2. Apparatus for hot galvanizing, comprising a tankv for containing themolten gal-L vanizin material, a conveyer passing over said tan supporting members having vented socket portions for engaging the ends of the pipe and also having means for detachably connecting them to 'the conveyer, and means for holding the.v pipedown in the molten metalas 'it isA moved along by the conveyer while suspended by said supporti-- ing members, substantially as described. f

3. Ap aratus for' hot galvanizing, c ox'nprising a tankl containing a molten galvanizing metal, an lendless conveyermounted over sald tank, and supporting members-having sockets adapted to engage. and close the ends of the pipes to be ga vanized and Dalso hav.-

Aing means for connecting them to said conl 'prising a tank fonc'ontaining the galvaniz-J means for-connecting them substantially as described.

veyer, substantially as described.

4. Apparatus for hot alvanizing, comprising a tank vfor containing the moltenmetal, a conveyer arranged over said tank, and supportingmembers having sockets to receive and close the 'ends of the pipes to be galvanized and also having vent openings extending therethrough 'and upwardly to points which will be above the level of the molten metal in said tank, to ether with In testimony whereof, I lhave hereunto set my hand.

NEWTON W. BUCH.

Witnesses: i

' GEORGE S. Lone,

Snom' D. I ioNe.

to t e conveyer,

i 'se 

